Installing attic insulation in cold climate is a must but still not enough. Combining attic insulation with radiant barrier will work wonder for attic insulation. Find out from this amazing video how to get the most out of attic insulation when you add radiant barrier in the attic.

Watch this video for information on how attic insulation & radiant barrier work together in cold climates This video shows the benefits of combining radiant barrier attic foil with attic insulation. Installing radiant barrier attic foil along with good attic insulation will help to make your home more comfortable and energy efficient. A radiant barrier will reduce radiant heat loss and reduce air flow in the insulation which reduces the R-Value of the attic insulation.

8 Comments

Taping the seams is not required. You have a couple of options. The best and easiest way is to jut use a 3-5″ piece every few feet to “tack” the pieces together. If you have a large open area, you can lay out 2 or 3 pieces of foil side by side and tape the seams together to make an 8 or 12 foot wide piece. Then, roll up the foil like a rug and take into the attic and just roll it out. You can cover a lot of area fast this way.

If you are going to lay the foil over the insulation it is VERY important to use perforated radiant barrier Attic Foil. Perforated foil has tiny pinholes about every half inch that allow moisture in it’s vapor form to pass through so moisture will not get trapped. It is also important to seal up holes in the ceiling that will allow warm-moist air to escape from the home into the attic.

My husband and I have an older home with about 5-6 inches of insulation in my home. We talked about adding insulation as a way to make our home more energy efficient. So if we install radiant barrier foil, do you recommend adding more insulation before the radiant barrier foil or is this enough?

If your fiberglass insulation levels are low, you should certainly add more. These can be checked by calling your local code office or they are available online through the DOE’s web page. Adding a radiant barrier is an excellent idea to compliment this increase and Ed is correct, you should use a perforated product.

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